Automatic governor-valve.



DEFOY.

AUTOMATIC GOVERNOR VALVE.

APPLICATION FILED JUNE 9.1914.

1,15,491, Patented Sept. 7, 1915.

2 SHEETS-SHEET I.

,v 1 mun 2 z I H {f 1 3 71 2 5 2 v I I %/31 4 I V I l 1 I v I 7 5 II i 6 uh I 19 7 y fH- fi l IIi-%.J@K,2?|i 2o i H Witnesses:

COLUMBIA PLANDGRAPH c0., WASHINGTON, D. c.

I. DEFOY.

AUTOMATIC GOVERNOR VALVE.

APPLICATION FILED JUNE 9.1914. 1,152,91. PatentedSept. 7, 1915..

2 SHEETS-SHEET 2.

Witnesses:

Attorneys COLUMBIA PLANDORAPH SKI-,WASHINGTON, D C.

mam nEFoY; or ,s'r. noon DnenEBEo; QUEB C, mm.

Aeronautic GOVERNOR-VALVE.

To all whom it may concern Beit known that I, InnNIiDnroY, a subject of the King of' Great Britain, residing at No. 12 Laberge street, St. Roch de Qxuebec, Province of Quebec, Canada, have invented certain new and useful Improvements in Automatic GovernonValv'es; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to whichit appertains tomake and use the same.- f

The invention to be hereinafter described relates to automatic governor valves.

In orderto' more clearlydisclose the construction, operation, and us'e of the inven-x tion, reference should be had to the accompanying drawings formingipart ofth'e pres-;

ent application. V 1 Throughout the several figures: of the drawings like reference. characters desiga nate the same parts.

In thedrawings: Figural is a central, vertical, cross 860131011 through an exhaust control valve Fig; 2 is a like view through the governor valve; and'Flg. 3 1s aside view showing the two valves and their connections.

The mai objects of the invention are to provide a simple, efiicient, economical, du-v rable, and'compact governor valve adapted.

to' automatically control the" admission of exhaust to a heating system.

-Referring to the drawings in detail, 1" indicates an exhaust valve casing provided,

with an inlet passage 2 leading from an engine or the like, an outlet 3 leading to the atmosphere, outlet 4 leading to a pipe 5 5 connectedwith a heatingsystem, and a pressure inlet passage 6. Within the casing 1 is slidably mounted a piston 7 adapted to reciprocate in the lower part of the casing. A similar but smaller piston 8 is mounted to reciprocate in the upper portion of the easing and is normally maintained in its lowered position by a spring-9. The two pistons are connected by a piston rod 10 which carries a slide valve 11 adapted to close either the passage 3 or the passage 4, there by diverting the exhaust either into the pipe 5 or into the atmosphere. A small bore 12 establishes communication between the passage 3 and the upper end of the casing to permit easy travel of piston,8. The pas sage 6, beneath piston '7 is connected to a pipe 13 provided with a small header 14: to.

which are connected two short pipes 15 and 16. provided; with plug valves 15 and16, respectively, The opposite ends of these plpes are connected to steam passages 17 and 18, respectively, in the upper part of the body of the governor valve. To the opposite ends of thesepassages are connected pipes 19am]. '20, respectively, provided with plug valveslS) and 20. The opposite ends of these pipes 19and 20 are connected to a small header 21 which, injturn, is cone, nected to a pipe 22. leading.from'a boiler, a1r tank or other suitable source of fluid pressure. The lower; part ofthebodyof the governor valve provided with a dia phragm chamber, 23 in which is mounted a dlaphragm 24 on which rests the lower end ofaasmall cylinder 25 slidably and reciprocably'mountedinthe body of the governor valve.

Specification of Letters Patent. V Patented Sept. 7, 1915., Application filed. June 9,1914.- Seria1N0.843,941. i i i i The, upper (end is formed with beveled valve face 26 to fita corresponding valve seat 27 formed in the lower face'of the partition between passages 17 and 18, and

surrounding an inlet port, therethrough. The stem 28 extends from the cylinder25 upwardly through this passage,and into a cylindrical member 29 and is provided with a cup 30 to receive the, lowerendof a spring 31 confined between' it and a regulating screw 32,,threaded into the upper end. of the cylindrical .meinbery .j The diaphragm chamber, below the diaphragm, is in communication with the heating systemby.

means of a pipe 33 'connecteditol the pipe fi. Now, assuming the partsto be inthepositions of Fig. 3; when, the pressure in the pipeb and connected'heating system falls below the counter-facting force of spring-31, spring 31 will force member. 25 down and will then flow from. pipe 22 intoheader 21, thence through pipe 19 and passage 17,

open the port] through thelfpartition between'passages ll and 18. Pressurefluid i header connected thereto, into and through pipe 13 and beneath piston? forcing it'up, and causing the-slide valve to close outlet 3 and open outlet. 4, so that the exhaust will pass into pipe 5 and into the system until the pressure therein has been raised to olfset the action of spring 31, at which time the diaphragm will 'rise, closing the port through the partition. When this ccurs, the pressure will be cut oil from piston 7, of course, and the pressure flu d will escape from beneath'theipiston, 7 age duct-G fin'aaplugafi threaded intothe.

bottom of: passaget, *thus "permitting the ':'to the, positi on ofFig. ofecheck valv e;1().0,is placed in pipe5bev tween"casingzl and the connection with the vsystems to prevent back pressure intocasing '1,of course;- V

The" op''rationjof the inventionhas been described jwithi reference to .a' low pressure i-ne'diu n 'for actuating thepiston 7 and its I passing from passa the highpressure and let -'ofi by pipe 16; gas "in thefcas'e of low .pr'e'ssuref,

2' cooperating parts, When'a high pressure medium isused; the operation is exactly the same; except thatplug valves 19 and 1 6 ,7 are. closed and plug valves '2O"'and 15- are opened' "so that the high" pressure, medium fiows iin throughipipe 2O andout: through pipe-15.5; This arrangement-forithefhigh 2O a pressure "is tofo'vercome the downward! force 1 ivliichjvould'beexerted by the high pressure y mediuniin contact with the surta'ce'26 while g6 17} to p'ass'age 18; were delivered by the pipe 19 g 1 {The invention' is particularly "adapted for af 'eonibination of v v p j h'aus't;land steam'heating systemsjas in the 1 sameg and 'it meant to with-in this application wherein only; a preair pressure, engine ex:

case of train'heatingffor' instance. In such ease; the pipe'22 would be' connected"direct s to {theair reservoir, the;casingl would re-' ceivethe' 'steam"exhaust, and the heating;

- j system would be supplied-with steam in the usual manner:

v It "isthougl'it an theeenstruceion, O en tilon; and use "of the'finvention will be clear, from-the preceding detailed description.

Ch-an esma be made in the. construction, arrangement; and; disposition of 'th several' partsof the invention without in any Way" departingffrom the rfielii and iscope of the ferredQ form'has been disclosed; r I

Havi'ngthus folly-described invention a whatSI- claim as new "and desire to secure 'byQL etters Patent is? I voifiwl iichoutletscommunicates with'the at- ;f l. In combination ;':-1 an exhaust receiving casin 7 havingan inlet andtwo outlets, one

mo'sphereya" steam supply pipe communicat fing vvi'th theother outlet ofthei'said casing; a check valve-mounted therein; agovernor valvevconnected to a source of supply of include all such 7 i i have the di- ,r'ection of flow of" the pressure fluid therethrough changed; "means/for changing the slide valvetobe moved back; by its sprin'g,.;

1. Any suitable form direction of flow of the pressure fluid through the said governor valve; connections between the said governor valveand steam supply pipe; a piston mounted in the said exhaust'receiving casing; a slide valve operative thereby and adapted to close the lower outlet of the saidcasing when the p ston is-depressed and to close the upper outlet when the piston is raised; a pipe connected to the govcrnorvalve casing and to the exhaust receiving casing, beneath the. said piston;and' leakage means provided in the said exhaust receiving casing beneath the saidpiston. V

2. In combination; an exhaust receiving easing having an inlet and two outlets; one ofwhich outlets communicates with the at mosphere; a steam supplyvpipecommunicating with the other outlet of the said casing; a check valve mounted therein; a piston-jmounted in the lower part of'the said casing; a piston rod carried thereby; means for normally holding the said; piston in depressed condition; a; slide valve carried by the said piston rod and adaptedvto close the loweroutlet of the said casingfwhen the piston is depressed, and to'close' the upper outlet when the piston is raised; a governor governor valve casing in accordance with the pressurein the last mentioned pipe; and a plug communicating with the interior oifthe said exhaust receivingcasing, beneath the said piston and provided with a leakage duct, 1

Inwitness whereofl have herelmto set my hand in thepresence ftwo witnesses 7 IRENE DEFOY. -VVitn'esses: I CHAS. VIZINA; ADJUTOR Frsn'r.

' copiesof thisi patent may be'cbtained forfi ve cents each, by addressing the Commissioner of Patents,

- -ij t; w :1 I Washington, 33.0. Y Y 

